The Naval Research Laboratory’s Ion Tiger, a hydrogen-powered fuel cell unmanned air vehicle, has flown 26 hours and 1 minute carrying a 5-pound payload, setting another unofficial flight endurance record for a fuel-cell powered flight.
The Naval Research Laboratory’s Ion Tiger, a hydrogen-powered fuel cell unmanned air vehicle, has flown 26 hours and 1 minute carrying a 5-pound payload, setting another unofficial flight endurance record for a fuel-cell powered flight.
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